17 lines
429 B
C
17 lines
429 B
C
#pragma once
|
|
|
|
#define UART_STATUS_RXNE_pos 1
|
|
#define UART_STATUS_RXNE_msk (1 << UART_STATUS_RXNE_pos)
|
|
#define UART_STATUS_TXE_pos 0
|
|
#define UART_STATUS_TXE_msk (1 << UART_STATUS_TXE_pos)
|
|
|
|
struct uart {
|
|
volatile uint8_t data;
|
|
volatile uint16_t flags;
|
|
};
|
|
|
|
int uart_rx_available(struct uart* uart);
|
|
int uart_tx_available(struct uart* uart);
|
|
void uart_write(struct uart* uart, const char c);
|
|
char uart_read(struct uart* uart);
|